Neon dwarf rainbowfish
Melanotaenia praecox
FishFreshwater
- Care level
- Easy
- Temperament
- Peaceful
- Recommended tank
- 100 L
- Maximum size
- 6 cm
- Temperature
- 23–27 °C
- pH
- 6.8–7.5
- Group size
- ≥ 6
- Diet
- Omnivore
Care at a glance
The neon dwarf rainbowfish comes from the Mamberamo basin in New Guinea and radiates a metallic blue that almost glows under side lighting. Males are deeper-bodied with red-orange fins, while females keep yellowish fins.
It is an active schooling fish that needs open swimming space along the front and only colours up fully after a few months. Hard tap water is no problem for it, which makes it an easy choice in many regions; do keep it in a group and with equally active, not too small tankmates.
Related species
Keep Neon dwarf rainbowfish in the BlubHub app
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Values are mainstream hobbyist guidance, not gospel — always watch what your own animals need.